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PHYSIOGRAPHIC DIAGRAM 

 THE UNITED STATES 



Size 62X44 inches, Scale so miles to one inch 



By A. K. LOBECK 



Department of Geography, University of Wisconsin 



This diagram is intended to be used as a guide in teaching the physiography and 

 geology of the United States. The topographic features are expressed with the idea 

 of revealing or suggesting the underground structure, and the general character of 

 the underlying rock. 



An introductory drill such as having students draw cross sections through the 

 Adirondack uplift, the Cincinnati or Nashville Domes, across the Appalachians in 

 different places, through the Black Hills, Central Texas, the Ozarks^ Wisconsin and 

 many other regions is followed up with the use of other available material, espe- 

 cially state geological maps and the United States Geological Survey topographic 

 sheets. 



The student frequently fails to note the significance of a locality with relation to 

 the physiographic province or geological region as a whole. This is overcome by 

 requiring the student to locate upon the diagram the position of the topographic 

 quadrangles under consideration. As practically every topographic map published 

 by the Survey was consulted in the preparation of the Diagram, most of the signifi- 

 cant features are recognizable in the Diagram too. Seventeen geological provinces 

 are discussed briefly on the map. 



PRICES 



Student edition (one color) with one-half of U.S. on each side of sheet, size 31X44 



inches. 



Single copy $1.25 Fifty copies, each $1.00 



Ten copies, each i.io One hundred copies, each. . .90 



Two color edition with entire map on same side of sheet, size 62X44 inches. 



Single copy $2.25 Fifty copies, each $i-7S 



Ten copies, each 2.00 One hundred copies, each.. 1.50 



Prices on two color edition, mounted on cloth for permanent class room use, size 



62 X44 inches. 



With Common Rollers at Top and Bottom $4.50 



On Spring Roller and Board with Dust Proof Cover 7-7S 



In Steel Spring Roller Case 8.7S 



A. J. NYSTROM & COMPANY 



Publishers 



2249 Calumet Ave., Chicago, 



